Prospective-randomized multi-center trial. Patients with high risk of recurrent GI-bleeding (non-variceal) are identified (Rockall Score > 6) and randomized into either endoscopic treatment with the OTSC [Over The Scope Clip] or endoscopic standard therapy. 100 Patients are planned. Hypothesis: Endoscopic therapy with OTSC is superior to standard therapy regarding technical success and rebleeding.